Fig. 4From: Trend in survival after out-of-hospital cardiac arrest and its relationship with bystander cardiopulmonary resuscitation: a six-year prospective observational study in BeijingMultivariate path analysis model 2 (among patients that EMS attempted to resuscitate). N = 2250, excluding 28 patients lost-to-follow-up. EMS, Emergency Medical Services; OHCA, Out-of-Hospital Cardiac Arrest; ROSC, return of spontaneous circulation; CPR, cardiopulmonary resuscitation; GFI, goodness-of-fit index; AGFI, adjusted goodness-of-fit index; RMSEA, root mean square error of approximation; CFI, comparative fit index; Standardized RMR, standardized root mean squared residual; RFI, relative fit index; NFI, normed fit index; CI, confidence interval; β, standardized estimateBack to article page